Radon as a Early Warning Tool in Tectonic Monitoring Environments Analyzing Data Behavior

M. K. Naskar,V. I. Outkin,Pushan Kumar Dutta,A. K. Yurkov,O. P. Mishra,I. A. Kozlova

doi:10.2478/jogs-2013-0024

M. K. Naskar, V. I. Outkin

Open Access

https://doi.org/10.2478/jogs-2013-0024

Copy DOI

Abstract

Radon as a Early Warning Tool in Tectonic Monitoring Environments Analyzing Data Behavior

Highlights

Research on geochemical precursory algorithms aimed at defining quantitative relations between seismogenic parameters and endogenetic components shows that despite of development of the seismometric equipment, methods of processing of seismic signals, development of seismometric complexes etc., the problem of the forecast of tectonic earthquakes remains unsolved as passive seismological signals not always remit deterministic evidence for preparing event with speed of occurrence of seismological signals
The initial investigation on radon presence in groundsoil was performed at an active fault whereby anomalous radon concentrations (Imamura 1947) were reported before the strong earthquake zone (Hatuda 1953).This was there after followed as Tashkhent [Ulomov, 1967] which has been closely followed by a series of radon data observations as anomalies correlated with geophysical events available from different countries
The results presented through work gives concrete proof that the final process of preparation of a tectonic earthquake has a duration of 120-150 days and is not dependent on the type of array deformation reflection of the process of preparation of a tectonic earthquake in the radon concentrations (VAR) starts for 120-150 days before the event and does not Journal of Geodetic Science 205 depend on the type of of deformation; of the array, whereas the size of area of expected event with magnitude about 4 makes about 40 kms; events with magnitude about 50 kms and magnitude 6 more than 50 kms

Summary

Introduction

Research on geochemical precursory algorithms aimed at defining quantitative relations between seismogenic parameters and endogenetic components shows that despite of development of the seismometric equipment, methods of processing of seismic signals, development of seismometric complexes etc., the problem of the forecast of tectonic earthquakes (especially short-term) remains unsolved as passive seismological signals not always remit deterministic evidence for preparing event with speed of occurrence of seismological signals. In a fractured and unstable regime, the effects of this slip can disturb the rock for a huge distance depending on volume of cracked rock at depth (preparation focal zone) resulting in anomaly in source zone for precursor signals. The initial investigation on radon presence in groundsoil was performed at an active fault whereby anomalous radon concentrations (Imamura 1947) were reported before the strong earthquake zone (Hatuda 1953).This was there after followed as Tashkhent [Ulomov, 1967] which has been closely followed by a series of radon data observations as anomalies correlated with geophysical events available from different countries. The observation of anomalies in the radon concentration in soil gas and ground water before earthquakes initiated systematic investigations on earthquake precursor phenomena. Radon concentration variations with changes in flow patterns of diverse fluids within the ground, resultant from modifications in local stress fields of the crust

Mechanism of radon anomaly for forecasting

Proposed seismic monitoring system

Results

Conclusions